The best free alternative to Froala Editor is TinyMCE, which is also Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to Froala Editor and 17 is free so hopefully you can find a suitable replacement. Other interesting free alternatives to Froala Editor are Trumbowyg, Editor.js, Aloha Editor and ContentTools Editor.
Froala Editor is mainly a Text Editor but alternatives to it may also be Code Editors or WYSIWYG HTML Editors. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Froala Editor.
TinyMCE vs Froala Editor opinions
Most users think TinyMCE is a great alternative to Froala Editor.
It has nearly all the features of Froala, it supports image uploads with plugins, it uses inline css and has a rich pool of plugins.
Editor.js is a block-styled editor for rich media stories. It outputs clean data in JSON instead of heavy HTML-markup. And more important thing is that Editor.js is designed to be API extendable and pluggable.